Watching Biden get smeared by Trump and supporters for his affectionate behavior is the height of irony.
It hasn't seem to hurt him in the polls.
Here are other examples of his "offensive" behavior.
https://www.google.com/search?q=biden+hugging+men+images&tbm=isch&source=univ&sa=X&ved=2ahUKEwi9jfTCg8ThAhUhTd8KHTpNCI0Q7Al6BAgIEA0&biw=1152&bih=586